533
15.1.3 Pin Configuration
Table 15-1 shows the HCAN’s pins.
When using HCAN pins, settings must be made in the HCAN configuration mode (during
initialization: MCR0 = 1 and GSR3 = 1).
Table 15-1 HCAN Pins
Name Abbreviation Input/Output Function
HCAN transmit data pin HTxD Output CAN bus transmission pin
HCAN receive data pin HRxD Input CAN bus reception pin
A bus driver is necessary between the pins and the CAN bus. A Philips PCA82C250 compatible
model is recommended.
15.1.4 Register Configuration
Table 15-2 lists the HCAN’s registers.
Table 15-2 HCAN Registers
Name Abbreviation R/W Initial Value Address* Access Size
Master control register MCR R/W H'01 H'F800 8 bits 16 bits
General status register GSR R/W H'0C H'F801 8 bits
Bit configuration register BCR R/W H'0000 H'F802 8/16 bits
Mailbox configuration register MBCR R/W H'0100 H'F804 8/16 bits
Transmit wait register TXPR R/W H'0000 H'F806 8/16 bits
Transmit wait cancel register TXCR R/W H'0000 H'F808 8/16 bits
Transmit acknowledge register TXACK R/W H'0000 H'F80A 8/16 bits
Abort acknowledge register ABACK R/W H'0000 H'F80C 8/16 bits
Receive complete register RXPR R/W H'0000 H'F80E 8/16 bits
Remote request register RFPR R/W H'0000 H'F810 8/16 bits
Interrupt register IRR R/W H'0100 H'F812 8/16 bits
Mailbox interrupt mask register MBIMR R/W H'FFFF H'F814 8/16 bits
Interrupt mask register IMR R/W H'FEFF H'F816 8/16 bits
Receive error counter REC R H'00 H'F818 8 bits 16 bits
Transmit error counter TEC R H'00 H'F819 8 bits
Unread message status register UMSR R/W H'0000 H'F81A 8/16 bits
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